CN117394595A - Auxiliary starting device for low-speed direct-drive steam compressor - Google Patents
Auxiliary starting device for low-speed direct-drive steam compressor Download PDFInfo
- Publication number
- CN117394595A CN117394595A CN202311462734.7A CN202311462734A CN117394595A CN 117394595 A CN117394595 A CN 117394595A CN 202311462734 A CN202311462734 A CN 202311462734A CN 117394595 A CN117394595 A CN 117394595A
- Authority
- CN
- China
- Prior art keywords
- hydraulic cylinder
- fixed plate
- low
- overrunning clutch
- speed direct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 abstract description 8
- 239000003921 oil Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/118—Structural association with clutches, brakes, gears, pulleys or mechanical starters with starting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides an auxiliary starting device for a low-speed direct-drive steam compressor, which comprises a fixed plate, wherein the fixed plate is used for being installed on a device platform, the fixed plate is hinged with a hydraulic cylinder through a first connecting component, the working end of the hydraulic cylinder is connected with a second connecting component, the working end of the hydraulic cylinder is rotationally connected with an overrunning clutch through the second connecting component, the overrunning clutch is installed on a rotor of a motor, when the device is started, the working end of the hydraulic cylinder is ejected out, the working end drives the overrunning clutch to drive the whole rotor of the motor to rotate through the second connecting component, and a lubricating oil film is formed on the surface of the rotor; the main motor is started synchronously, and the starting current of the main motor is greatly reduced because a lubricating oil film is formed. When the rotating speed of the main motor exceeds the rotating speed brought by the ejection of the hydraulic cylinder, the overrunning clutch automatically disengages from the rotor, so that the problem that the starting current is large due to the fact that an oil film is not formed during the starting is solved.
Description
Technical Field
The invention relates to the technical field of auxiliary starting of large-scale impeller machines, in particular to an auxiliary starting device for a low-speed direct-drive steam compressor.
Background
The large-scale impeller machine adopts the sliding bearing, and the oil film is not formed during the starting, so that the load starting torque is large, and the starting current is large, when the current limit is used, other equipment is required to be shut down to start the equipment, and when the equipment works stably, the other equipment is restarted, so that the production needs to be suspended, and the enterprise efficiency is reduced.
Disclosure of Invention
The invention aims to provide an auxiliary starting device for a low-speed direct-drive steam compressor, which overcomes the defects in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides an auxiliary starting drive for low-speed direct-driven vapor compressor, includes the fixed plate, the fixed plate is used for on the erection equipment platform, and the fixed plate articulates through coupling assembling one has the pneumatic cylinder, the work end of pneumatic cylinder is connected with coupling assembling two, and the work end of pneumatic cylinder is connected with overrunning clutch through coupling assembling two rotations, overrunning clutch installs on the rotor of motor.
In the scheme, when the engine is started, the working end of the hydraulic cylinder is ejected out, and the working end drives the overrunning clutch to drive the whole rotor of the motor to rotate through the second connecting component, so that a lubricating oil film is formed on the surface of the rotor; meanwhile, when the hydraulic cylinder drives the overrunning clutch to rotate, the height of the working end of the hydraulic cylinder continuously rises, and the tail end of the hydraulic cylinder also rotates around the fixed plate through the first connecting component so as to raise the height of the tail end of the hydraulic cylinder; the main motor is started synchronously, and the starting current of the main motor is greatly reduced because a lubricating oil film is formed. When the rotating speed of the main motor exceeds the rotating speed brought by the ejection of the hydraulic cylinder, the overrunning clutch automatically disengages from the rotor, so that the problem that the starting current is large due to the fact that an oil film is not formed during the starting is solved.
As an improvement of the auxiliary starting device for the low-speed direct-drive steam compressor, the first connecting component comprises a support lug fixedly connected with the fixed plate, a rotating shaft and a first expansion sleeve at the tail end of the hydraulic cylinder, wherein a bearing is arranged in the support lug, a shaft body of the rotating shaft penetrates through the first expansion sleeve, and two ends of the rotating shaft are embedded into the bearing of the support lug.
In the scheme, the first connecting component has the working principle that when the working end of the hydraulic cylinder stretches out, the working end pushes the overrunning clutch, the center height of the working end continuously rises in the process, and the tail end of the hydraulic cylinder rotates with the bearing in the supporting lug through the rotating shaft fixed by the expansion sleeve in the process of continuously rising the center height of the working end, so that the tail end of the hydraulic cylinder rotates to keep the integrity of the hydraulic cylinder.
As an improvement of the auxiliary starting device for the low-speed direct-drive steam compressor, the second connecting component comprises a joint fixedly connected with the working end of the hydraulic cylinder, a connecting shaft and a connecting plate fixedly connected with the super clutch shell, wherein the second connecting plate is internally provided with a second expansion sleeve, one end of the connecting shaft is embedded into the joint, and the other end of the connecting shaft is embedded into the second expansion sleeve of the connecting plate.
In the scheme, the working principle of the second connecting component is that the working end drives the overrunning clutch to work through the joint, the connecting shaft and the connecting plate, so that the overrunning clutch drives the rotor to rotate, and the second expanding sleeve is used for avoiding abrasion caused by sliding of the connecting shaft and the connecting plate.
As an improvement of the auxiliary starting device for the low-speed direct-drive steam compressor, the joint is a fish-eye joint.
In the scheme, the fisheye joint is adopted to eliminate the assembly difficulty caused by the different coaxiality of the joint and the expansion sleeve of the connecting plate.
As an improvement of the auxiliary starting device for the low-speed direct-drive steam compressor, a fixed plate at the tail end of the hydraulic cylinder is provided with a through hole.
In the above scheme, because the tail end of the hydraulic cylinder rotates around the supporting lugs in the working process, in order to avoid the contact between the tail end of the hydraulic cylinder and the fixing plate, the fixing plate at the tail end of the hydraulic cylinder is provided with the through hole.
Compared with the prior art, the invention has the beneficial effects that: when the engine is started, the working end of the hydraulic cylinder is ejected out, the working end drives the overrunning clutch to drive the whole rotor of the motor to rotate through the second connecting component, and a lubricating oil film is formed on the surface of the rotor; the main motor is started synchronously, and the starting current of the main motor is greatly reduced because a lubricating oil film is formed. When the rotating speed of the main motor exceeds the rotating speed caused by ejection of the hydraulic oil cylinder, the overrunning clutch automatically disengages from the rotor, so that the problem that the starting current is large due to large load starting torque caused by the fact that an oil film is not formed just during starting is solved; the fish eye joint is adopted to eliminate the assembly difficulty caused by the different coaxiality of the joint and the expansion sleeve of the connecting plate; the second expansion sleeve is used for avoiding abrasion caused by sliding of the connecting shaft and the connecting plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
Fig. 1 is a schematic diagram of an auxiliary starting device and motor for a low-speed direct-drive vapor compressor.
Wherein, 1, a fixing plate; 2. a hydraulic cylinder; 3. an overrunning clutch; 4. a first connecting component; 41. a support lug; 42. a rotating shaft; 43. the first expansion sleeve is arranged; 5. a second connecting component; 51. a joint; 52. a connecting shaft; 53. a connecting plate; 6. and a motor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, an auxiliary starting device for a low-speed direct-drive vapor compressor comprises a fixed plate 1, wherein the fixed plate 1 is used for a mounting device platform, the fixed plate 1 is hinged with a hydraulic cylinder 2 through a first connecting component 4, the working end of the hydraulic cylinder 2 is connected with a second connecting component 5, the working end of the hydraulic cylinder 2 is rotationally connected with an overrunning clutch 3 through the second connecting component 5, and the overrunning clutch 3 is mounted on a rotor of a motor 6.
When the engine is started, the working end of the hydraulic cylinder 2 is ejected out, the working end drives the overrunning clutch 3 to drive the whole rotor of the motor 6 to rotate through the second connecting component 5, and a lubricating oil film is formed on the surface of the rotor; meanwhile, when the hydraulic cylinder 2 drives the overrunning clutch 3 to rotate, the height of the working end of the hydraulic cylinder 2 is continuously increased, and the tail end of the hydraulic cylinder 2 also rotates around the fixed plate 1 through the first connecting component 4 so as to lift the height of the tail end of the hydraulic cylinder 2; the main motor 6 is started synchronously, and the starting current of the main motor 6 is greatly reduced at this time because a lubricating oil film is already formed. When the rotating speed of the main motor 6 exceeds the rotating speed caused by the ejection of the hydraulic oil cylinder, the overrunning clutch 3 automatically disengages from the rotor, so that the problem that the load starting torque is large and the starting current is large due to the fact that an oil film is not formed just at the time of starting is solved.
The first connecting component 4 comprises a support lug 41 fixedly connected with the fixed plate 1, a rotating shaft 42 and a first expansion sleeve 43 at the tail end of the hydraulic cylinder 2, wherein a bearing is arranged in the support lug 41, a shaft body of the rotating shaft 42 penetrates through the first expansion sleeve 43, and two ends of the rotating shaft 42 are embedded into the bearing of the support lug 41.
The working principle of the first connecting component 4 is that when the working end of the hydraulic cylinder 2 stretches out, the working end pushes the overrunning clutch 3, in the process, the center height of the working end continuously rises, in the process that the center height of the working end continuously rises, the tail end of the hydraulic cylinder 2 rotates with a bearing in the supporting lug 41 through a rotating shaft 42 fixed by a first expansion sleeve 43, so that the tail end of the hydraulic cylinder 2 rotates to keep the integrity of the hydraulic cylinder 2.
The second connecting component 5 comprises a joint 51 fixedly connected with the working end of the hydraulic cylinder 2, a connecting shaft 52 and a connecting plate 53 fixedly connected with the super clutch shell, wherein a second expansion sleeve is arranged in the connecting plate 53, one end of the connecting shaft 52 is embedded into the joint 51, and the other end of the connecting shaft 52 is embedded into the second expansion sleeve of the connecting plate 53.
The working principle of the second connecting component 5 is that the working end drives the overrunning clutch 3 to work through the joint 51, the connecting shaft 52 and the connecting plate 53, so that the overrunning clutch 3 drives the rotor to rotate, and the second expanding sleeve is used for avoiding abrasion caused by sliding of the connecting shaft 52 and the connecting plate 53.
The joint 51 is a fish-eye joint.
The use of fish eye joints eliminates the difficulty of assembly due to the different coaxiality of the expansion sleeve between the joint 51 and the connecting plate 53.
The fixed plate 1 at the tail end of the hydraulic cylinder 2 is provided with a through hole.
Since the rear end of the cylinder 2 also rotates around the lug 41 during operation, the fixing plate 1 at the rear end of the cylinder 2 is provided with a through opening in order to avoid contact between the rear end and the fixing plate 1.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The utility model provides an auxiliary starting drive for low-speed direct-driven vapor compressor, its characterized in that, includes the fixed plate, the fixed plate is used for on the erection equipment platform, and the fixed plate articulates through coupling assembling one has the pneumatic cylinder, the work end of pneumatic cylinder is connected with coupling assembling two, and the work end of pneumatic cylinder is connected with overrunning clutch through coupling assembling two rotations, overrunning clutch installs on the rotor of motor.
2. The auxiliary starting device for a low-speed direct-drive steam compressor according to claim 1, wherein the first connecting component comprises a support lug fixedly connected with the fixed plate, a rotating shaft and a first expansion sleeve at the tail end of the hydraulic cylinder, wherein a bearing is arranged in the support lug, a shaft body of the rotating shaft penetrates through the first expansion sleeve, and two ends of the rotating shaft are embedded into the bearing of the support lug.
3. The auxiliary starting device for a low-speed direct-drive steam compressor according to claim 1, wherein the second connecting assembly comprises a joint fixedly connected with the working end of the hydraulic cylinder, a connecting shaft and a connecting plate fixedly connected with the super clutch shell, the second expanding sleeve is arranged in the connecting plate, one end of the connecting shaft is embedded in the joint, and the other end of the connecting shaft is embedded in the second expanding sleeve of the connecting plate.
4. An auxiliary starting device for a low speed direct drive vapor compressor as defined in claim 1 wherein said joint is a fisheye joint.
5. An auxiliary starting device for a low-speed direct-drive vapor compressor as defined in claim 1 wherein a fixed plate at the tail end of said hydraulic cylinder is provided with a through opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311462734.7A CN117394595A (en) | 2023-11-06 | 2023-11-06 | Auxiliary starting device for low-speed direct-drive steam compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311462734.7A CN117394595A (en) | 2023-11-06 | 2023-11-06 | Auxiliary starting device for low-speed direct-drive steam compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117394595A true CN117394595A (en) | 2024-01-12 |
Family
ID=89439040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311462734.7A Pending CN117394595A (en) | 2023-11-06 | 2023-11-06 | Auxiliary starting device for low-speed direct-drive steam compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117394595A (en) |
-
2023
- 2023-11-06 CN CN202311462734.7A patent/CN117394595A/en active Pending
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